Rapid dissolution of PuO.sub.2 analytical samples using mediated electrochemical oxidation

Current methods for quantitative dissolution of solid PuO.sub.2 involve lengthy dissolution times. The adaptation of mediated electrochemical oxidation, which uses an electrochemically produced oxidizing agent to catalyze dissolution, has been explored for radiochemical analysis scale dissolutions o...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2021-02, Vol.327 (2), p.991
Main Authors: Woods, Michael E, Benny, Paul D, Unger, Aaron J, Phongikaroon, Supathorn, Myhre, Kristian G
Format: Article
Language:English
Subjects:
Nuclear energy
Oxidation-reduction reaction
Oxides
Online Access:Get full text
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Summary:Current methods for quantitative dissolution of solid PuO.sub.2 involve lengthy dissolution times. The adaptation of mediated electrochemical oxidation, which uses an electrochemically produced oxidizing agent to catalyze dissolution, has been explored for radiochemical analysis scale dissolutions of PuO.sub.2. The effects of temperature, electrode material, and electrocatalyst on the dissolution kinetics were explored. Under conditions examined in this study, complete dissolution of tens of milligrams of solid PuO.sub.2 can be achieved in less than 1 h at ambient temperature. This methodology could be adapted to dissolve other metal oxides.
ISSN:0236-5731
DOI:10.1007/s10967-020-07577-9